RECONSTRUCTION OF ONE DIMENSIONAL MULTI-LAYERED MEDIA BY USING A TIME DOMAIN SIGNAL FLOW GRAPH TECHNIQUE

A novel inverse scattering method to reconstruct the permittivity profile of one-dimensional multi-layered media is proposed in this paper.Based on the equivalent network ofthe medium,a concept of time domain signal flow graph and its basic principles are introduced,from which the reflection coefficient of the medium in time domain can be shown to be a series ofDirac δ-functions(pulse responses).In terms of the pulse responses,we will reconstruct both thepermittivity and the thickness of each layer will accurately be reconstructed.Numerical examplesverify the applicability of this

有耗多层媒质的重建

借助于时域信号流图提出一种重建有耗多层媒质的新方法。利用TE波、TM波的反射信息,所有媒质参数可逐层地通过解析公式反演出来。文中对某些问题进行了讨论,并给出重建实例。

Cantor分形R分集分层介质的逆散射方法

Cantor分形R分集分层介质是一种自相似结构,这种结构在光学、量子力学领域很可能有重要应用。本文根据时域信号流图技术研究这种分形结构的逆散射方法,即利用已知的反射系数谱重建Cantor分形的维数及其自相似结构。文中给出了具体重建实例。